/*
 * Copyright 2024-2025 Embabel Software, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.embabel.plan.common.condition

import com.embabel.plan.Step

/**
 * Step with preconditions
 */
interface ConditionStep : Step {

    /**
     * Conditions that must be true for this step to execute
     */
    val preconditions: EffectSpec

    /**
     * The names of all conditions that are referenced by this step
     */
    val knownConditions: Set<String>

    /**
     * Whether the step is available in the current world state
     */
    fun isAchievable(currentState: ConditionWorldState): Boolean {
        return currentState satisfiesPreconditions preconditions
    }

}
